Voltage Levels

[thevogoncoder]

Hi,

did you use voltage level converters from Arduino to AFE4400? AFAIK the Arduino has 5V and the AFE4400 only supports up to 3.3V (according to Datasheet). If I need them, what do you suggest to use?

thank you in advance

[SMBTechnologies]

I was unable to Operate AFE 4400 with Arduino.
So I changed my platform And now I am using a Toradex Calibri Linux based
Board.
I am currently working on this project.
I have designed my own PCB also for the same.
Yes AFE 4400 requires 3.3V.
Arduino can also work on 3.3V but my experience says that the precise
timings required for
operating the AFE are not possible on an arduino platform.
I have been able to read and write values to registers on AFE using the
Toradex calibri board.
Now I am working on the algorithm and calculations required for obtaining
SPO2.

Thanks.
Husain Garhiwala

On Wed, Nov 5, 2014 at 5:01 PM, rubbaDuxXx [email protected] wrote:

Hi,

did you use voltage level converters from Arduino to AFE4400? AFAIK the
Arduino has 5V and the AFE4400 only supports up to 3.3V (according to
Datasheet). If I need them, what do you suggest to use?

thank you in advance

—
Reply to this email directly or view it on GitHub
#2.

[aaaaa654]

Hey @SMBTechnologies i wanted to ask, if you ever completed your project? I am working on trying to get afe4400 to work with stm nucleo64 board, but no luck. Kindly answer.

[SMBTechnologies]

Hey, I actually had to abandon this project since the SPO2 module itself had some limitations.It would give different readings for the same person .I got it to work with the Arduino I guess.We did get the readings .I may even have the source code but will have to look for it in my backup.This is a really old project. *Regards,* *Husain Garhiwala* *iothingss.com <http://iothingss.com>*

…

On Fri, Mar 3, 2023 at 1:47 PM aaaaa654 ***@***.***> wrote: Hey @SMBTechnologies <https://github.com/SMBTechnologies> i wanted to ask, if you ever completed your project? I am working on trying to get afe4400 to work with stm nucleo64 board, but no luck. Kindly answer. — Reply to this email directly, view it on GitHub <#2 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AB77JUFGC4M6SNHLXHOGW5TW2GSLNANCNFSM4AW46LKQ> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[aaaaa654]

So did you abandon the entire SpO2 project or just gave up on the module? I really need this to work for my FYP. Could you please look for the source code that worked for you? or suggest me replacement of this module. Thank you.